19825138

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:753

約数の個数: 16

約数和(自身を含む): 30222720

約数和(自身を除く): 10397582

約数列:

[1, 2, 109, 211, 218, 422, 431, 862, 22999, 45998, 46979, 90941, 93958, 181882, 9912569, 19825138]

約数ペア:

[(1, 19825138), (2, 9912569), (109, 181882), (211, 93958), (218, 90941), (422, 46979), (431, 45998), (862, 22999)]